Home / 1,005,729.21-1,387,707.53-564,218.73

Finding the Fourth Proportional to 1,005,729.21, 1,387,707.53 and 564,218.73

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Solution

The fourth proportional to 1,005,729.21, 1,387,707.53 and 564,218.73 is: 778,510.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,729.21 : 1,387,707.53 = 564,218.73 : x
  2. Step 2: Convert to fraction form
    1,005,729.21/1,387,707.53 = 564,218.73/x
  3. Step 3: Cross multiply
    1,005,729.21x = 1,387,707.53 × 564,218.73
  4. Step 4: Simplify right side
    1,005,729.21x = 782,970,577,366.94
  5. Step 5: Solve for x
    x = 782,970,577,366.94/1,005,729.21
  6. Step 6: Final answer
    x = 778,510.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.